The loss of Kakashi's Sharingan forced him to adapt an entirely new fighting style, deeming him even stronger than before.

Across the world of anime, plenty of characters have faced tragedy in their pasts. These backstories tug fans' heartstrings ...

All Masashi Kishimoto needs to do for Kakashi is give him Purple Lightning Armor and he'll make a great comeback as a Kage-level character.